Please answer the following questions by searching for answers:
1. How do you know which stars are up in the sky tonight?
2. How do you know that the weather is good for star gazing?
3. Why is the sky blue ?
4. Why is the sunset red?
5. Why is the morning sky colourful ?
6. How is the rainbow formed?
7. How is the double-rainbow formed?
8. Why are clouds sometimes bright and sometimes dark?
Please check that the answers are correct.